Large Flat Prints: Corners Lifting

Document the failure and confirm that it matches this guide: Large flat models curl upward at corners while the center remains attached.

Return extreme overrides to a known printer, nozzle, material, and slicer profile so the diagnosis starts from a stable baseline.

Check thermal contraction. Shield the printer from drafts.

Check drafts or uneven chamber temperature. Add a brim or mouse ears.

Inspect insufficient perimeter adhesion. Stabilize chamber conditions.

Rule out bed temperature or material mismatch. Confirm material-specific bed heat.

Change only the single setting or hardware condition supported by the evidence, then run a small test that reproduces the original failure.

Compare the test against the target condition, record the successful value, and save it in a printer/material profile before repeating the full print.